.content{
    video{
    display: block;
    }
    .video-box{
        position: relative;
        .video{
            width: 100%;
            aspect-ratio: 16 / 9;
        }
        .mask{
            width: 100%;
            height: 100%;
            position: absolute;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.3);
            z-index: 3;
        }
    }
    .desc{
        height: 800px;
    }
}